machines foe cutting bungs foe



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IMPROVEMENT INMAGHINES FOB, CUTTING BUNGS FORABRBLS.

JOHN GEORG SCHMIDT, OF ROCHESTER, EW YORK. Letters Patentlv'o. 60,430, dated December 11, 1866.

diie chhnle unfrei: tu in these -etrrs 332mm mit making ,mt nf its smut.

TO .ALL WHOM IT MAY CONOERN:

Be it known that I, JOHN GEORG SCMIDT, of the city of Rochester, in the county of Monroe, and Stai New York, have invented a new and useful improvement in .the art of Cutting Bunge for Barrels, and fol other tapering cutting of like character; and that I do hereby declare that the following is a full, clear, exact description of the construction and operation of the s'an'le, reference being hadto the annexed dro-wi and to the letters of reference inarked thereon, making a part of this speciiication, `in which- Figure 1 is a front view.

Figure 2, side view.

Figure 3, view of plate Figure 4, view of position of knife in cutting thewood:

The nature off my invention consists in a mandrel, a, gs. 1 and 2, with a yielding centre, b, easily nu back, the thickness of the material to be cut by pressing upon its point, and when this pressure is removed instantly thrown back or projected to its former position by m'eans of spiral-spring c c. The plate on the f end of mandrel, h, with slots, ,as shown in fig. 3, is for .the purpose of guiding and holding the cutter z (h after to be described) firmly from any other motion except to and from' the mandrel, by means of the s therein. The cutter 1.' is hung o r madefast to the mandrel at k, with perfect freedom of motion outward or te mandrel on the pin lc, at bank, and resting on the end of guide-serenity, for the purpose of governing the siz article to be cut. The spring f resting with a force su'cient to hold the cutter to the article to be cut, wf forms a guide as the angle of the cutter passes into the wood and forms a taper in `proportion to said an which may be altered at th'e back end bychanging the pin k to a. hole nearer or farther from the centre of mandrel still adjusted by the scre'w g, in this way you may out without any taper. The springs f f ma.; adjusted to the required power by the screws l Z. Fig. 2 showsthe Vwidth of cutter t' and spring f. Fig. 4 sl the cutting part of the machine in position to commence cutting a bung; 'n being the wood from which it i be cut; o o represents the direction of knife in cutting-the bung. As the cutter enters the wood the centr yields to the pressure and allows the cutter to pass through the wood, forming a perfect bung. The arm, e opposite side of cutter, iig. 1, serves as a eounterbalance (which can be regulated)v to the cutter, as the mac works best with one cutter.

What I claim as my invention and desire to secure by Letters Patent, is

- I claim adjusting the cutters of a bung-cutter by means of the screws g, springs f, and pins k, so a enable it to cut bungs of dierent sizes and taper, substantially as described.

' JOHN GEORG SCHMIDT. Witnesses: y

JOHN J. Amrnrnn, JonN J. Briones. 

